greybus: firmware: drop 'stage' from ready-to-boot request

The spec says that it doesn't need it, so dropping it.
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Reviewed-by: Johan Hovold <johan@hovoldconsulting.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>

drivers/staging/greybus/firmware.c

@@ -123,7 +123,7 @@ static int gb_firmware_ready_to_boot(struct gb_operation *op)
 	struct gb_connection *connection = op->connection;
 	struct gb_firmware_ready_to_boot_request *rtb_request = op->request->payload;
 	struct device *dev = &connection->dev;
-	u8 stage, status;
+	u8 status;
 
 	if (op->request->payload_size != sizeof(*rtb_request)) {
 		dev_err(dev, "%s: Illegal size of ready to boot request (%zu %zu)\n",
@@ -132,7 +132,6 @@ static int gb_firmware_ready_to_boot(struct gb_operation *op)
 		return -EINVAL;
 	}
 
-	stage = rtb_request->stage;
 	status = rtb_request->status;
 
 	/* Return error if the blob was invalid */

drivers/staging/greybus/greybus_protocols.h

@@ -193,7 +193,6 @@ struct gb_firmware_get_firmware_response {
 
 /* Firmware protocol Ready to boot request */
 struct gb_firmware_ready_to_boot_request {
-	__u8			stage;
 	__u8			status;
 } __packed;
 /* Firmware protocol Ready to boot response has no payload */